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linux/drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c

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pinctrl: sunxi: Add A80 special pin controller Like the previous designs, the A80 has a special pin controller for the critical pins, like the PMIC bus. Add a driver for this controller. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [wens: Add A80 compatible strings to bindings doc; fix pin function names based on v1.3 datasheet; constify of_device_id table] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-17 00:39:42 +08:00
/*
* Allwinner A80 SoCs special pins pinctrl driver.
*
* Copyright (C) 2014 Maxime Ripard
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
pinctrl: sunxi: make A80 explicitly non-modular The Kconfig currently controlling compilation of this code is: drivers/pinctrl/sunxi/Kconfig:config PINCTRL_SUN9I_A80_R drivers/pinctrl/sunxi/Kconfig: def_bool MACH_SUN9I ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Chen-Yu Tsai <wens@csie.org> Cc: linux-gpio@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-01 04:48:43 +08:00
#include <linux/init.h>
pinctrl: sunxi: Add A80 special pin controller Like the previous designs, the A80 has a special pin controller for the critical pins, like the PMIC bus. Add a driver for this controller. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [wens: Add A80 compatible strings to bindings doc; fix pin function names based on v1.3 datasheet; constify of_device_id table] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-17 00:39:42 +08:00
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/reset.h>
#include "pinctrl-sunxi.h"
static const struct sunxi_desc_pin sun9i_a80_r_pins[] = {
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_uart"), /* TX */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* PL_EINT0 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_uart"), /* RX */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* PL_EINT1 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_jtag"), /* TMS */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* PL_EINT2 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_jtag"), /* TCK */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* PL_EINT3 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_jtag"), /* TDO */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* PL_EINT4 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_jtag"), /* TDI */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* PL_EINT5 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_cir_rx"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* PL_EINT6 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "1wire"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* PL_EINT7 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_ps2"), /* SCK1 */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* PL_EINT8 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_ps2"), /* SDA1 */
SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* PL_EINT9 */
/* Hole */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* PM_EINT0 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* PM_EINT1 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2)), /* PM_EINT2 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* PM_EINT3 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_i2s1"), /* LRCKR */
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* PM_EINT4 */
/* Hole */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 8),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_i2c1"), /* SCK */
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 8)), /* PM_EINT8 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 9),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x3, "s_i2c1"), /* SDA */
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 9)), /* PM_EINT9 */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 10),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2s0"), /* MCLK */
SUNXI_FUNCTION(0x3, "s_i2s1")), /* MCLK */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 11),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2s0"), /* BCLK */
SUNXI_FUNCTION(0x3, "s_i2s1")), /* BCLK */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 12),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2s0"), /* LRCK */
SUNXI_FUNCTION(0x3, "s_i2s1")), /* LRCK */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 13),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2s0"), /* DIN */
SUNXI_FUNCTION(0x3, "s_i2s1")), /* DIN */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 14),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2s0"), /* DOUT */
SUNXI_FUNCTION(0x3, "s_i2s1")), /* DOUT */
SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 15),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 15)), /* PM_EINT15 */
/* Hole */
SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 0),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c0"), /* SCK */
SUNXI_FUNCTION(0x3, "s_rsb")), /* SCK */
SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 1),
SUNXI_FUNCTION(0x0, "gpio_in"),
SUNXI_FUNCTION(0x1, "gpio_out"),
SUNXI_FUNCTION(0x2, "s_i2c0"), /* SDA */
SUNXI_FUNCTION(0x3, "s_rsb")), /* SDA */
};
static const struct sunxi_pinctrl_desc sun9i_a80_r_pinctrl_data = {
.pins = sun9i_a80_r_pins,
.npins = ARRAY_SIZE(sun9i_a80_r_pins),
.pin_base = PL_BASE,
.irq_banks = 2,
pinctrl: sunxi: Disable strict mode for old pinctrl drivers Old pinctrl drivers will need to disable strict mode for various reasons, among which: - Some DT will still have a pinctrl group for each GPIO used, which will be rejected by pin_request. While we could remove those nodes, we still have to deal with old DTs. - Some GPIOs on these boards need to have their pin configuration changed (for bias or current), and there's no clear migration path Let's disable the strict mode on those SoCs so that there's no breakage. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-10 04:53:38 +08:00
.disable_strict_mode = true,
pinctrl: sunxi: Prepare for alternative bias voltage setting methods H6 has a different I/O voltage bias setting method than A80. Prepare existing code for using alternative bias voltage setting methods. Signed-off-by: Ondrej Jirman <megous@megous.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-04-14 00:54:12 +08:00
.io_bias_cfg_variant = BIAS_VOLTAGE_GRP_CONFIG,
pinctrl: sunxi: Add A80 special pin controller Like the previous designs, the A80 has a special pin controller for the critical pins, like the PMIC bus. Add a driver for this controller. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [wens: Add A80 compatible strings to bindings doc; fix pin function names based on v1.3 datasheet; constify of_device_id table] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-17 00:39:42 +08:00
};
static int sun9i_a80_r_pinctrl_probe(struct platform_device *pdev)
{
return sunxi_pinctrl_init(pdev,
&sun9i_a80_r_pinctrl_data);
}
static const struct of_device_id sun9i_a80_r_pinctrl_match[] = {
{ .compatible = "allwinner,sun9i-a80-r-pinctrl", },
{}
};
static struct platform_driver sun9i_a80_r_pinctrl_driver = {
.probe = sun9i_a80_r_pinctrl_probe,
.driver = {
.name = "sun9i-a80-r-pinctrl",
.owner = THIS_MODULE,
.of_match_table = sun9i_a80_r_pinctrl_match,
},
};
pinctrl: sunxi: make A80 explicitly non-modular The Kconfig currently controlling compilation of this code is: drivers/pinctrl/sunxi/Kconfig:config PINCTRL_SUN9I_A80_R drivers/pinctrl/sunxi/Kconfig: def_bool MACH_SUN9I ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Chen-Yu Tsai <wens@csie.org> Cc: linux-gpio@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-01 04:48:43 +08:00
builtin_platform_driver(sun9i_a80_r_pinctrl_driver);